Pipe-trap cover



H. s. WRIGHT PIPE'TRAP cvEf April 18, 1933.'

Filed Dec. l5, 19:51

Patented Apri `1933 HARRY sonnen warennor mamme, cmrsn'rrs A mai-aar com Application lea December 5, 1881. Serial No. 579,182.

My invention relates to pipe-traps, cleanouts and the like, and more especially to covers or closures for the same.

Heretofore such traps which are made of lead have been closed' by threaded caps, usuallyof brass, and on account of the sticking of the threads due to corrosion and other causes, the removal of such caps frequently resulted in the distortion of the body of the trap.

Sometimes, and especially in bathrooms, pipe-traps are )laced beneath the floor, which usually is tile so that the replacement of a trap on account of injury to the same by the forcible removal ofy a screw-cap, necessi- A tetes the removal o a' `ortion o the dooring With this object in view my invention con.

templates the use of a bevelled cover-plate disposed on the open end of the tra having a. ange bevelled reversely to that o the cap,

and a clamping member comprising two hinged arms, the inner surfaces of which are bevelled complementarily to those of the 3@ flange and cover, together with a locking member constructed and arranged to receive the laterally-projecting ends of said arms,

and a lever pivotally connected to said mem-v ber and arranged toco-operate with one of said projecting ends and draw the .locking member against the other projecting end, thereby to tightly clamp the cover-plate to the trap.

In the drawing which accompanies and 4@ 'forms a part of this specification,

Figure 1 is a front elevation of a pipe/trap embodying my invention; f

Fig. 2 is a vertical section taken on the line 2- 2 of Fig. 3, and

Fig. 3 is a plan view. In the partlcular drawing selected forl more ,Y YVfully disclosing the principle of my inven- Itin, 10 Vrepresents a pipe trap vof the type usually placed under kitchen sinks, said trap e having inlet pipes 11, 11 from the nur* and]v wash-tubs, for example, and an outlet 12 to i the soilpipe which is connected with the sewerage system.

The open end of the trap is provided with an annular bevelled flange 13 which may be of brass or other suitable material and preferably is 'secured' to the trap by wiping. Placed on top of said flange is a cover-plate 14 having its edge bevelled /reversel with respect to the bevel of the Hangs. Pre erably a gasket 15 is interposed Ibetween the bevelled ange and the cover plate.

The means preferred by ine for securin the cover to the trap for ready removal there rom consists of an annular clamping member formed by two semi-circular ar 16, 17 hinged at 18 and terminating in laterallyextending projections 19,v 20, respect'vely, said projections being, as shown, opposite y disposed and provided with opposltely-dl- 'rected curvilinear surfaces 21, 22, respec-7 tively. A locking-member 23 is provided for drawing the arms together, said lock' member in the resent instance consisting o two parallel p ates connected by studs 24, 25, the stud 25 passing throu h a roller 26 sha d correspondingly with t e curvilinear sur ace of the projecting end 20, and the stud 24 serving to pivotally connect the locking lever 27 to the upper end of the locking frame. The free' end of said lookin lever is provided with a cam surface 28 con orming in general to the shape of the curvilinear surface of the projecting end 19. f

It will be noted that' the locking member is independent of the clamping arms 16, 17 so that when the clamping member is loosened for removing the cover 14 by turning the lever to the right (referring to Figi. 3), said locking member with its attache locking lever may be removed from'the ends of the clampin arms. Y 'l r l In or er to clamp thel cover-plate on the trap, the locking member is placed over the projections 19, 20 of the clam ing arms, the lever 27 being in its righthan position, and said lever is then turned to the position shown in Fig. 3 sov'that by co-action of the cam surface on its free end with the curvilinear surface of the projection19, the -roll 26 is drawn 2 neoeeio against' the projection 20- and the clamp'` member firmly closed on the Harige 13 an cover 14, thereby locking the latter rmiy in position.

. 5 Having' thus described on illustrative embodiment of my invention, without however vlimiting the same thereto, what claim en desire to secure by Letters Patent is:

A. clamping member comprising e pair of' 1o hinged arms havin their free ends terminating in opposite y-disposed laterally-extending projections provided with oppositely-directec curvilinear surfaces, a lochng member independent of seici arms and erranged to receive said projections, andi e locking'iever pivotelly connected to one end of said member and having a cam surface on the free end thereof arranged for 3o-operation with the curvilinear surfeoe of one of seid projections to drow the other end of seid member against the other of seid projections.

iin testimony whereof, ii here hereunto subscribed. my nome this 4th doy of December,

HARRY STUMNER WRGHT. 

